Home / 57,553.11-79,435.55-38,679.30

Finding the Fourth Proportional to 57,553.11, 79,435.55 and 38,679.30

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Solution

The fourth proportional to 57,553.11, 79,435.55 and 38,679.30 is: 53,385.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,553.11 : 79,435.55 = 38,679.30 : x
  2. Step 2: Convert to fraction form
    57,553.11/79,435.55 = 38,679.30/x
  3. Step 3: Cross multiply
    57,553.11x = 79,435.55 × 38,679.30
  4. Step 4: Simplify right side
    57,553.11x = 3,072,511,667.70
  5. Step 5: Solve for x
    x = 3,072,511,667.70/57,553.11
  6. Step 6: Final answer
    x = 53,385.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.